Don't you need a lens though Ari

I was always very wary of ball heads but have a small (3 year old) Slik (Digital) tripod that fits inside a small backpack and they are so much better than when I first used one in the 1960's.

That's an interesting video, an excellent ball-head, but it also shows how camera/tripod stabitily depends on good positioning of the tripod socket on a camera, so that it's well balanced, poor positioning affects all tripod heads.